CNET: The first draft of an energy and climate change bill calls for national mandates for renewable energy and energy efficiency but leaves crucial details on carbon regulations open for negotiation. The House Energy and Commerce Committee on Tuesday released the first draft of the American Clean Energy and Security Act of 2009, (click for PDF) which its backers hope will be voted on this summer. Key figures for the bill in the House are Rep. Henry Waxman, who chairs the Energy and …